Method for simultaneously determining multiple preservatives in exported vegetables

Abstract

The invention discloses a method for simultaneously determining multiple preservatives in exported vegetables. The method comprises steps of extracting, purifying, concentrating, ultra performance liquid chromatography-mass spectrum / mass spectrum (UPLC-MS / MS) determination, etc. The method can simultaneously determine eighteen preservatives including imazalil, chlorpyrifos, carbendazol, thiabendazole, prochloraz, pyrimethanil, myclobutanil, flusilazole, propiconazole, triadimefon, iprodione, fenbuconazole, methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, propyl p-hydroxybenzoate, butyl p-hydroxybenzoate, ethyl naphthol and p-phenylphenol. The method for simultaneously determining multiple preservatives in exported vegetables disclosed by the invention has the advantages of simple and convenient steps, high accuracy and high precision.

Description

technical field [0001] The invention belongs to the field of chemical analysis and detection, and in particular relates to a simultaneous determination method of multiple preservatives in export vegetables. Background technique [0002] Vegetables are one of the essential foods in people's daily diet. They can provide various vitamins and minerals necessary for the human body, and play an important role in the residents' diet. Eating more vegetables has many functions such as health care and disease prevention, cancer prevention and treatment, nutrition enhancement, digestion promotion, and blood vessel softening. However, during field production, vegetables are often infected by microorganisms such as fungi and pathogenic bacteria, resulting in easy mildew and corruption after picking. Therefore, preservatives play an important role after picking vegetables. Preservatives are often made into various preparations or sprayed on the surface of vegetables, or directly soaked i...

AI Technical Summary

Problems solved by technology

Long-distance transportation of inland vegetables for export is prone to spoilage and mildew. Irregular use or abuse of vegetable preservatives may lead to such drugs exceeding the standard and endangering people's health

Numerous testing items and a long testing cycle not only bring inconvenience to the purchase of fresh vegetable raw materials and export customs clearance, but also lead to a decline in the quality of vegetable preservation and economic losses, etc.

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